CN217448086U

CN217448086U - Main unit of electric toothbrush and electric toothbrush

Info

Publication number: CN217448086U
Application number: CN202220219253.8U
Authority: CN
Inventors: 周宝多; 刘仕华; 王兴
Original assignee: Guangzhou Stars Pulse Co Ltd
Current assignee: Guangzhou Stars Pulse Co Ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-09-20
Anticipated expiration: 2032-01-25

Abstract

The application discloses electric toothbrush's host computer and electric toothbrush. The host computer of the electric toothbrush that this application embodiment provided includes core and handle. The core is located in the handle, the handle includes first section and second section, first section with the second section is followed the length direction of handle sets up, the core includes the battery, first section with the second section forms respectively handle length direction's both ends, the second section is used for installing the toothbrush head, first section with the outer peripheral face of at least one in the second section has many archs, many archs are to keeping away from the inner space hunch-up and follow of handle the circumference interval of handle sets up, the arch is in extend on the length direction of handle. So, the circumference interval of handle sets up the sense of holding when a plurality of archs can strengthen the user and hold the handle, increases the frictional force between user's hand and the handle, avoids electric toothbrush to drop and causes damage or pollution.

Description

Main unit of electric toothbrush and electric toothbrush

Technical Field

The application relates to the technical field of oral cleaning tools, in particular to a host of an electric toothbrush and the electric toothbrush.

Background

With the attention of people on personal cleaning and health, oral cleaning and nursing are more and more concerned. In the related technology, the outer contour of the cross section of the handle of the electric toothbrush is circular or oval, etc., and the outer contour is generally smooth curve, so that in the actual use process, the surface of the electric toothbrush is smooth, and when the force is small, the electric toothbrush is easy to slide along the direction of gravity, so that the toothbrush is polluted and damaged.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a main machine of an electric toothbrush and the electric toothbrush.

The host computer of the electric toothbrush that this application embodiment provided includes core and handle. The core is located in the handle, the handle includes first section and second section, first section with the second section is followed the length direction of handle sets up, the core includes the battery, first section with the second section forms respectively handle length direction's both ends, the second section is used for installing the toothbrush head, first section with the outer peripheral face of at least one in the second section has many archs, many archs are to keeping away from the inner space hunch-up and follow of handle the circumference interval of handle sets up, the arch is in extend on the length direction of handle.

So, the circumference interval of handle sets up the sense of holding when a plurality of archs can strengthen the user and hold the handle, increases the frictional force between user's hand and the handle, avoids electric toothbrush to drop and causes damage or pollution.

In some embodiments, the tip of the protrusion has a ridge that extends in the lengthwise direction of the handle.

In some embodiments, the ridge extends to a lengthwise end of the handle; or the length of the ridge occupies at least 3/5 of the length of the first section or the second section.

In some embodiments, the distance between two adjacent ridge lines along the circumference of the handle ranges from 4mm to 10 mm.

In some embodiments, the central angle formed between two adjacent ridge lines along the circumferential direction of the handle ranges from 20 degrees to 40 degrees.

In some embodiments, the protrusions are disposed twisted about a circumference of the handle in a length direction of the handle.

In certain embodiments, at least one of the first segment and the second segment has a gradually increasing cross-section in a direction away from each other.

In some embodiments, the handle includes a middle section connecting the first section and the second section, and the plurality of projections extend away from the middle section of the handle along a length of the handle.

In certain embodiments, the handle comprises an intermediate section connecting the first and second sections, the first and second sections each increasing in cross-section in a direction away from each other, the intermediate section being recessed by a depth greater than 1.5mm relative to a maximum in cross-section in the first and second sections.

In some embodiments, a plane or a concave curved surface is arranged between two adjacent ridge lines.

In certain embodiments, the handle comprises an intermediate section connecting the first section and the second section, the outer surface of the intermediate section being smoothly curved; and/or the projection height of the projection gradually decreases in a direction approaching the middle section; or the height of the bulge is gradually reduced from the middle part of the bulge to the directions of the two ends.

In some embodiments, the height of the portion of the protrusion extending to both ends of the handle is gradually reduced in a direction near the ends of the handle, or the height of the protrusion is gradually reduced from the middle of the protrusion to both ends.

In some embodiments, the two ends of the projection are spaced from the two ends of the handle.

In some embodiments, the distance between two adjacent protrusions gradually increases in a direction from the middle section to both end sections of the handle in the circumferential direction of the handle.

In certain embodiments, the height of the protrusions is no more than 2 mm.

In some embodiments, the protrusion in the first section is disconnected from the protrusion in the second section, and the length of the protrusion in the first section is greater than the length of the protrusion in the second section along the length of the handle.

In certain embodiments, the length of the protrusions in the first segment and the length of the protrusions in the second segment are each no greater than 10 cm.

In some embodiments, the length of the first segment is greater than or equal to the length of the second segment, the ratio of the length of the first segment to the length of the handle as a whole ranges from 1/3 to 5/12, and/or the ratio of the length of the second segment to the length of the handle as a whole ranges from 1/6 to 1/3.

In some embodiments, the handle has at least one button disposed thereon, and the protrusion extends at least to the button.

In some embodiments, the button protrudes from the outer peripheral surface of the handle by a height greater than the height of the protrusion.

In some embodiments, the button comprises two buttons which are arranged at intervals along the length direction of the handle, and the two buttons are different in shape.

The electric toothbrush provided by the embodiment of the application comprises the toothbrush head and the main body of the electric toothbrush provided by any embodiment of the electric toothbrush. The toothbrush head is disposed in the second section.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an exploded schematic view of an electric toothbrush according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of an electric toothbrush according to an embodiment of the present application;

FIG. 3 is another exploded schematic view of the electric toothbrush of the present application embodiment;

FIG. 4 is a schematic structural view of an electric toothbrush according to an embodiment of the present application;

FIG. 5 is another schematic structural view of the electric toothbrush of the present application embodiment;

FIG. 6 is a schematic, diagrammatic illustration of the construction of the handle of the electric toothbrush of the present embodiment;

FIG. 7 is an enlarged schematic view of the handle of the electric toothbrush of the present embodiment;

FIG. 8 is a schematic view of the handle and head of the powered toothbrush of the present embodiment;

FIG. 9 is a schematic top view of the powered toothbrush of an embodiment of the present application;

FIG. 10 is an enlarged schematic view of a portion of the construction of the electric toothbrush according to the embodiment of the present application;

FIG. 11 is a schematic sectional view of the electric toothbrush according to the embodiment of the present application in an axial direction;

fig. 12 is a schematic structural view of the outer contour of the end portion of the electric toothbrush according to the embodiment of the present application.

Description of the main element symbols:

the electric toothbrush comprises an electric toothbrush 100, a movement 20, a handle 10, a slow flow part 11, a first end 111, a second end 112, a ridge part 113, a holding part 12, a first section 121, a second section 122, a middle section 123, a protrusion 124, a ridge line 1241, a positioning salient point 125, a button 13, a toothbrush head 30, bristles 31, a toothbrush handle 32 and a transmission rod 40.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 to 3, a main body 110 of a power toothbrush 100 according to an embodiment of the present invention includes a movement 20 and a handle 10. The movement 20 is arranged in the handle 10, the handle 10 comprises a first section 121 and a second section 122, the first section 121 and the second section 122 are arranged along the length direction of the handle 10, the movement 20 comprises a battery 21 (see fig. 11), the first section 121 and the second section 122 respectively form two end parts of the length direction of the handle 10, the second section 122 is used for installing the toothbrush head 30, the peripheral surface of at least one of the first section 121 and the second section 122 is provided with a plurality of protrusions 124, the protrusions 124 are arched towards the inner space departing from the handle 10 and are arranged along the circumferential direction of the handle 10 at intervals, and the protrusions 124 extend in the length direction of the handle 10.

Thus, the plurality of protrusions 124 are disposed at intervals along the circumferential direction of the handle 10 to enhance the grip feeling of the user when the user holds the handle 10, increase the friction between the user's hand and the handle 10, and prevent the electric toothbrush 100 from falling off and causing damage or pollution.

It is noted that the powered toothbrush 100 provided by the embodiments of the present application includes, but is not limited to, sonic toothbrushes, ultrasonic toothbrushes, plug-in power powered toothbrushes, battery-powered electric toothbrushes, and the like. The handle 10 may be configured as a cylinder, such as a prism, a cylinder, etc., so as to better conform to the holding habit of the user and enhance the use experience.

Preferably, the handle 10 may be provided in a prism structure, so that the electric toothbrush 100 can be prevented from rolling on a table when the electric toothbrush 100 is placed on the table in a horizontal state, so that the electric toothbrush 100 can be more stably placed on the table.

The protrusion 124 may be a semi-cylindrical shape, a triangular prism shape, or the like, which is not limited herein. Since the protrusions 124 extend in the longitudinal direction of the handle 10, even if the electric toothbrush 100 slides in the longitudinal direction of the handle 10, the hand of the user can be effectively contacted with the protrusions 124 of the handle 10, so that the friction between the hand of the user and the handle 10 can be increased, and the electric toothbrush 100 can be prevented from falling off from the hand.

In one embodiment, the outer peripheral surface of the first segment 121 has a plurality of protrusions 124, the plurality of protrusions 124 are arched toward the inner space facing away from the handle 10 and are spaced apart along the circumference of the handle 10, and the protrusions 124 extend in the length direction of the handle 10.

When the user holds the first section 121 to use the electric toothbrush 100 and the handle 10 slides, the protrusions 124 on the first section 121 can increase the friction between the user's hand and the handle 10, thereby preventing the electric toothbrush 100 from falling off.

In another embodiment, the outer peripheral surface of the second section 122 has a plurality of protrusions 124, the plurality of protrusions 124 are arched toward the inner space facing away from the handle 10 and are spaced apart along the circumference of the handle 10, and the protrusions 124 extend in the length direction of the handle 10.

When the user holds the connection point of the first section 121 and the second section 122 and uses the electric toothbrush 100, when the handle 10 slides in the direction from the second section 122 to the first section 121, the protrusion 124 on the second section 122 contacts with the hand of the user, and the protrusion 124 can increase the friction between the hand of the user and the handle 10, so as to prevent the electric toothbrush 100 from falling off.

In yet another embodiment, the outer peripheral surfaces of the first segment 121 and the second segment 122 each have a plurality of protrusions 124, the plurality of protrusions 124 are arched toward the inner space facing away from the handle 10 and are arranged at intervals in the circumferential direction of the handle 10, and the protrusions 124 extend in the length direction of the handle 10. When the user holds the handle 10 and slides the handle 10 in a direction from the second section 122 to the first section 121 or in a direction from the first section 121 to the second section 122, the protrusions 124 on the first section 121 or the second section 122 increase the friction between the user's hand and the handle 10, so that the electric toothbrush 100 is not easily dropped.

Referring to fig. 1 and 2, the main body 110 of the electric toothbrush 100 according to the embodiment of the present application may be used for the electric toothbrush 100, and the electric toothbrush 100 may further include a brush head 30, and the brush head 30 is disposed at the second section 122.

Since the electric toothbrush 100 employs the main body 110 of the electric toothbrush 100, the electric toothbrush 100 has the advantages that the plurality of protrusions 124 arranged at intervals in the circumferential direction of the handle 10 can enhance the grip feeling when the user holds the handle 10, increase the friction between the user's hand and the handle 10, and prevent the electric toothbrush 100 from falling off.

Toothbrush head 30 can include brush hair 31 and brush holder 32, and toothbrush head 30 can dismantle through brush holder 32 and the one end of handle 10 and be connected, and then toothbrush head 30 can dismantle the setting after using a period so that change toothbrush head 30, avoids toothbrush head 30 to use for a long time and breed the bacterium and produce the influence to the human body. Wherein, one end of the handle 10 opposite to the toothbrush head 30 can be set to be a plane structure, so that the electric toothbrush 100 can be vertically placed without falling, thereby facilitating the placement of the electric toothbrush 100.

Specifically, toothbrush head 30 is detachably mounted on second section 122, and a user can hold handle 10 for oral cleaning, so as to exert force to make toothbrush head 30 clean the inside of the oral cavity better. It will be appreciated that the bristles 31 of the head 30 of the power toothbrush 100 are deformed to various degrees after a certain period of use, thereby reducing the efficiency of the power toothbrush 100 in cleaning the interior of the mouth and maintaining the sanitary environment of the mouth, and requiring regular replacement of the head 30.

Therefore, the detachable connection between the brush head 30 and the second section 122 of the handle 10 allows the electric toothbrush 100 to be replaced only by the brush head 30 when it is necessary to replace it, thereby avoiding unnecessary waste.

Referring to fig. 1, 3, 4 and 5, in some embodiments, the top end of the protrusion 124 has a ridge 1241, and the ridge 1241 extends in the length direction of the handle 10. As such, the ridge 1241 may further serve to enhance grip stability.

Specifically, in the process of using the electric toothbrush 100, the user holds the handle 10, and since the ridge 1241 extends along the length direction of the handle 10, even if the electric toothbrush 100 slides along the length direction of the handle 10, the hand of the user can effectively contact with the ridge 1241 on the handle 10, the grip feeling when the hand of the user holds the handle 10 can be enhanced, the friction between the hand of the user and the handle 10 is increased, and the electric toothbrush 100 is prevented from falling off to cause damage or pollution.

Note that, from the outer peripheral surface of the handle 10 toward the direction away from the inner space of the handle 10, the end of the protrusion 124 farthest from the outer peripheral surface of the handle 10 is the tip of the protrusion 124.

In some embodiments, the ridgeline 1241 extends to the end of the handle 10 in the lengthwise direction; alternatively, the length of the ridge 1241 is at least 3/5 of the length of the first segment 121 or the second segment 122. In this way, when the user holds the handle 10, the hand of the user can effectively hold the ridge 1241, so that the friction between the hand and the handle 10 is increased, and the electric toothbrush 100 is prevented from falling off.

In one embodiment, when the ridge 1241 extends to the end of the handle 10 along the length direction, when the user holds the end of the handle 10, the ridge 1241 on the end can enhance the grip feeling when the user holds the end, increase the friction between the user's hand and the end, and prevent the electric toothbrush 100 from falling off from the user's hand.

In another embodiment, the length of the ridge 1241 is 3/5 of the length of the first segment 121, the user can effectively grip the ridge 1241 on the first segment 121 with his hand, and the ridge 1241 can increase the friction between the hand and the handle 10 to prevent the electric toothbrush 100 from falling off.

In yet another embodiment, the length of the ridge 1241 is 3/5 of the length of the second section 122, so that the user can effectively grip the ridge 1241 on the second section 122 with the hand of the user, and the ridge 1241 can increase the friction between the hand and the handle 10 to prevent the electric toothbrush 100 from falling off.

Referring to fig. 3 and 6, in some embodiments, the distance C1 between two adjacent ridge lines 1241 ranges from 4mm to 10mm along the circumference of the handle 10. Thus, the number of the ridge lines 1241 can be secured, so that the frictional force between the user's hand and the handle 10 can be increased, and the stability when holding the electric toothbrush 100 can be secured.

Specifically, the distance C1 between two adjacent ridge lines 1241 in the circumferential direction of the handle 10 may be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, and 10mm, or the distance C1 between two adjacent ridge lines 1241 in the circumferential direction of the handle 10 may be any value within a range of values defined by any two of the above values. In one example, the distance C1 between two adjacent ridge lines 1241 is 5mm along the circumference of the handle 10.

Referring to fig. 6, in some embodiments, the central angle α formed between two adjacent ridge lines 1241 along the circumferential direction of the handle 10 is in a range of 20 degrees to 40 degrees. Thus, the number of the ridge lines 1241 can be secured, so that the frictional force between the user's hand and the handle 10 can be increased, and the stability when holding the electric toothbrush 100 can be secured.

Specifically, the central angle α formed between two adjacent ridge lines 1241 in the circumferential direction of the handle 10 may be 20 degrees, 23 degrees, 26 degrees, 29 degrees, 32 degrees, 35 degrees, 38 degrees, and 39 degrees, or the central angle α formed between two adjacent ridge lines 1241 in the circumferential direction of the handle 10 may be any value within a range of values defined by any two values. In one example, the central angle α formed between two adjacent ridge lines 1241 is 30 degrees in the circumferential direction of the handle 10.

More specifically, when the central angle α formed between two adjacent ridge lines 1241 is greater than 40 degrees along the circumferential direction of the handle 10, the number of the ridge lines 1241 on the handle 10 is small, so that the user's fingers easily grip a portion of the outer circumferential surface of the handle 10 without the protrusion 124, so that the electric toothbrush 100 is easily slid to cause contamination and damage; when the central angle α formed between two adjacent ridge lines 1241 is smaller than 20 degrees, the number of the ridge lines 1241 on the handle 10 is too large, which may affect the hand feeling of the user when holding the handle 10.

Referring to fig. 1 and 5, in some embodiments, the protrusions 124 are twisted about the circumference of the handle 10 in the direction of the length of the handle 10. In this way, the aesthetic appearance of the outer surface of the handle 10 of the electric toothbrush 100 can be increased while ensuring the stability of the user's grip of the electric toothbrush 100.

Specifically, when the handle 10 is slid along the second section 122 toward the first section 121 during use of the electric toothbrush 100, the protrusion 124 is twisted around the circumference of the handle 10 in the lengthwise direction of the handle 10 to increase the resistance when the handle 10 is slid, thereby preventing the handle 10 from slipping off to ensure stable holding of the electric toothbrush 100, when the user holds the junction of the first section 121 and the second section 122.

In some embodiments, the line twisted around the circumference of the handle 10 in the length direction of the handle 10 may be a straight line, or may be a curved line, such as an S-shape, or may be both a straight line and a curved line, which is not limited herein.

In some embodiments, the protrusions 124 are disposed about the non-circumferential twist of the handle 10 in the length direction of the handle 10, as shown in fig. 4.

Referring to fig. 5, in some embodiments, at least one of the first segment 121 and the second segment 122 has a gradually increasing cross-section in a direction away from each other. Thus, when the handle 10 slides down, the portion of the handle 10 having a large cross-sectional area contacts with a human hand to form a barrier, which can further increase the stability of holding the electric toothbrush 100, so that the electric toothbrush 100 is not easily dropped.

In one embodiment, the cross-sectional area of the second segment 122 in a direction away from the first segment 121 is constant, and the cross-sectional area of the first segment 121 gradually increases in a direction away from the second segment 122. When the user holds the joint of the first section 121 and the second section 122 and the handle 10 slides in the direction from the first section 121 to the second section 122, the portion of the first section 121 having a larger cross-sectional area contacts with the human hand to form a stop, so that the electric toothbrush 100 is not easily dropped.

In one embodiment, the first segment 121 has a constant cross-sectional area in a direction away from the second segment 122, and the second segment 122 has a gradually increasing cross-sectional area in a direction away from the first segment 121. When the user holds the joint of the first section 121 and the second section 122 and the handle 10 slides in the direction from the second section 122 to the first section 121, the portion of the second section 122 having a larger cross-sectional area contacts with the human hand to form a stop, so that the electric toothbrush 100 is not easily dropped.

In one embodiment, the first segment 121 has a gradually increasing cross-sectional area in a direction away from the second segment 122, and the second segment 122 has a gradually increasing cross-sectional area in a direction away from the first segment 121. When the user holds the joint of the first section 121 and the second section 122 and slides the handle 10 in the direction from the second section 122 to the first section 121 or in the direction from the first section 121 to the second section 122, the part of the first section 121 or the second section 122 having a large cross-sectional area comes into contact with the hand of the hand to form a stop, so that the electric toothbrush 100 is not easily dropped.

Referring to FIG. 1, in some embodiments, the handle 10 can further include an intermediate section 123 connecting the first section 121 and the second section 122, and the plurality of protrusions 124 can extend along the length of the handle 10 away from the intermediate section 123 of the handle 10. Thus, the extending direction of the plurality of protrusions 124 may further serve to enhance the stability of holding the electric toothbrush 100.

Referring to fig. 1, in some embodiments, the handle 10 may include an intermediate section 123 connecting the first section 121 and the second section 122, the first section 121 and the second section 122 each having a gradually increasing cross-section in a direction away from each other, and the intermediate section 123 may be recessed more than 1.5mm from a maximum cross-section of the first section 121 and the second section 122.

Thus, when the user holds the middle section 123 of the handle 10 and slides along the second section 122 toward the first section 121 or slides along the direction from the first section 121 toward the second section 122, the larger cross-sectional area of the first section 121 or the second section 122 will contact with the human hand to form a barrier, so that the electric toothbrush 100 is not easy to fall off and damage and/or pollute.

The depth of the recess of the intermediate section 123 relative to the maximum cross-sectional area in the first section 121 and the second section 122 is greater than 1.5mm, which saves material usage of the intermediate section 123 and thus manufacturing costs of the intermediate section 123.

The depth of the recess of the middle section 123 relative to the maximum cross section in the first section 121 and the second section 122 may be 1.52mm, 1.54mm, 1.56mm, 1.58mm, 2mm, 2.02mm, etc., which is not limited herein.

It should be noted that, when the intermediate section 123 is a cylinder with a constant diameter, the cross section of the intermediate section 123 is recessed more than 1.5mm with respect to the maximum cross section of the first section 121 and the second section 122. In the length direction of the handle 10, when the cross section of the middle section 123 gradually decreases from the middle to both ends of the middle section 123, or when the cross section of the middle section 123 gradually increases from the middle to both ends, the depth of the maximum cross section of the middle section 123 is recessed more than 1.5mm with respect to the maximum cross section in the first section 121 and the second section 122.

Referring to fig. 6, in some embodiments, a portion between two adjacent ridge lines 1241 may be a flat surface or a concave curved surface. Thus, the user can feel less likely to hurt his hand when holding the handle 10, and the electric toothbrush 100 can be more stably placed on a flat surface.

In one embodiment, a plane is formed between two adjacent ridge lines 1241 on the protrusion 124 of the outer peripheral surface of the handle 10, and when the electric toothbrush 100 is placed on a table while being horizontal, the plane between two adjacent ridge lines 1241 is in contact with the table, so that the electric toothbrush 100 is placed more stably and is not easy to roll.

In another embodiment, the two adjacent ridge lines 1241 on the protrusion 124 of the outer peripheral surface of the handle 10 are concave, and when the electric toothbrush 100 is placed on a table horizontally, the two adjacent ridge lines 1241 contact with the table, so that the electric toothbrush 100 is placed more stably and is not easy to roll.

Referring to FIG. 5, in some embodiments, the handle 10 may further include an intermediate section 123 connecting the first section 121 and the second section 122, wherein an outer surface of the intermediate section 123 is a smooth curved surface; and/or the protrusion height of the protrusion 124 gradually decreases in a direction approaching the middle section 123; alternatively, the height of the protrusion 124 is gradually decreased from the middle of the protrusion 124 toward both ends. Thus, the outer surface of the middle section 123 is smooth and curved, which improves the hand feeling of the user holding the handle 10 and prevents the user from hurting his hand.

Specifically, in certain embodiments, the intermediate section 123 can be a cylinder of constant diameter. In some embodiments, the cross-section of the intermediate section 123 decreases from the middle to the ends along the length of the handle 10. In some embodiments, the cross-section of the intermediate section 123 increases from the middle to the ends along the length of the handle 10.

In one embodiment, the outer surface of the middle section 123 is smoothly curved so that when a user holds the power toothbrush 100, the fingers contact the middle section 123 to provide a better feel and prevent the middle section 123 from hurting the hand.

In another embodiment, the protrusion height of the protrusion 124 gradually decreases in a direction near the middle section 123, thereby improving the feel of the user holding the power toothbrush 100.

In yet another embodiment, the outer surface of the middle section 123 is a smooth curved surface, and the protrusion height of the protrusion 124 gradually decreases in a direction approaching the middle section 123, so that the protrusion 124 and the middle section 123 can smoothly transition, thereby improving the aesthetic property of the electric toothbrush 100 and improving the hand feeling of the user holding the electric toothbrush 100.

Referring to fig. 5, in some embodiments, the height of the portion of the protrusion 124 extending to both ends of the handle 10 is gradually reduced in a direction toward the end of the handle 10; alternatively, the height of the protrusion 124 is gradually decreased from the middle of the protrusion 124 toward both ends. Thus, the protrusions 124 can smoothly transition to the two ends of the handle 10, thereby improving the aesthetic appearance of the electric toothbrush 100.

In one embodiment, the height of the portion of the protrusion 124 on the first segment 121 extending to both ends of the handle 10 is gradually reduced, and the height of the protrusion 124 on the second segment 122 is gradually reduced from the middle of the protrusion 124 toward both ends of the protrusion 124. Thus, the protrusion 124 of the second section 122 and the middle section 123 can smoothly transition to each other, so as to prevent the protrusion 124 of the second section 122 from hurting the hand when the user holds the electric toothbrush 100.

In another embodiment, the height of the protrusion 124 on the first segment 121 is gradually reduced from the middle of the protrusion 124 toward both ends of the protrusion 124, and the height of the portion of the protrusion 124 on the second segment 122 extending to both ends of the handle 10 is gradually reduced. In this way, the protrusions 124 on the first section 121 and the middle section 123 can make smooth transition, and the portion of the finger contacting the first section 121 feels better when the user holds the electric toothbrush 100.

In yet another embodiment, the height of the portion of the first segment 121 where the protrusion 124 extends to both ends of the handle 10 and the portion of the second segment 122 where the protrusion 124 extends to both ends gradually decreases. As such, the protrusions 124 can increase the stability of holding the electric toothbrush 100, and the hand feeling of the portion where the fingers are in contact with the portions of both ends of the handle 10 is better when the user holds the electric toothbrush 100.

In yet another embodiment, the height of the protrusion 124 on the first segment 121 and the height of the protrusion 124 on the second segment 122 both decrease gradually from the middle of the protrusion 124 to the ends of the protrusion 124. In this way, the protrusions 124 on the first section 121 and the second section 122 and the middle section 123 can be smoothly transitioned to improve the feeling when the handle 10 is held, and the consistent trend of the height of the protrusions 124 on the first section 121 and the second section 122 can improve the aesthetic appearance of the electric toothbrush 100. When the user holds the joint of the first section 121 and the second section 122, and the handle 10 slides in the direction from the second section 122 to the first section 121 or in the direction from the first section 121 to the second section 122, the upper protrusion 124 of the first section 121 or the second section 122 increases the friction between the hand of the user and the handle 10, so that the electric toothbrush 100 is not easily dropped from the hand.

Referring to fig. 3 and 4, in some embodiments, two ends of the protrusion 124 are spaced apart from two ends of the handle 10; alternatively, one end of the protrusion 124 at the first segment 121 is spaced from the end of the handle 10. Since the user generally holds the first section 121 or the second section 122 of the handle 10 when holding the electric toothbrush 100, the stability of holding the electric toothbrush 100 is not affected by whether the protrusions 124 are provided on both end portions of the handle 10, so that the protrusions 124 may be omitted from providing on both end portions of the handle 10.

In some embodiments, the handle 10 may further include a bottom portion connected to the first segment 121, and a top portion connected to the second segment 122. Wherein the top portion is disposed on the second section 122 on a side facing away from the intermediate section 123 and the bottom portion is disposed on the first section 121 on a side facing away from the intermediate section 123. The top portion is connected to a toothbrush head 30. The bottom is flat, and when the electric toothbrush 100 is vertically placed, the bottom of the handle 10 can be connected to the plane where the electric toothbrush 100 is currently located, so that the electric toothbrush 100 can be stably and vertically placed.

In one embodiment, the protrusion 124 of the second section 122 is spaced apart from the top at the end near the bottom, and the protrusion 124 of the first section 121 is spaced apart from the bottom at the end near the bottom, i.e., the protrusion 124 of the top or bottom of the handle 10 is omitted, since the user generally holds the first section 121 or the second section 122 of the handle 10 when holding the electric toothbrush 100, the omission of the protrusion 124 of the top or bottom of the handle 10 does not affect the stability of holding the electric toothbrush 100.

In another embodiment, the protrusion 124 of the second segment 122 extends to the top of the handle 10, and the protrusion 124 of the first segment 121 is spaced apart from the bottom at an end near the bottom, that is, the protrusion 124 may be formed on the top of the handle 10, and the protrusion 124 is not formed on the bottom of the handle 10, so as to avoid the hand hurting condition when the user touches the bottom of the handle 10.

Referring to fig. 5, in some embodiments, the distance between two adjacent protrusions 124 gradually increases from the middle section 123 to both ends of the handle 10 along the circumferential direction of the handle 10. In this manner, the protrusions 124 may also increase the aesthetic appearance of the outer surface of the handle 10 of the electric toothbrush 100 while ensuring the stability of the user's grip of the electric toothbrush 100.

Referring to FIG. 6, in some embodiments, the height H of the protrusions 124 does not exceed 2 mm. As such, while increasing the frictional force between the user's hand and the handle 10 to ensure stability when holding the electric toothbrush 100, the user can also ensure the feeling when holding the handle 10, so that the protrusions 124 do not easily hurt the hand.

Specifically, the height H of the protrusion 124 refers to a distance between the highest point of the protrusion 124 and the outer peripheral surface of at least one of the first section 121 and the second section 122, at which the protrusion 124 is arched away from the inner space of the handle 10. The height H of the protrusion 124 may be 0.05mm, 0.25mm, 0.5mm, 0.75mm, 1mm, 1.05mm, 1.35mm, 1.5mm, 1.75mm, 2mm, etc., without limitation. It is understood that when the height H of the protrusion 124 exceeds 2mm, the protrusion 124 is easily crushed to affect the hand feeling when the user holds the handle 10, and the protrusion 124 is easily damaged when the electric toothbrush 100 is dropped.

Referring to fig. 5, in some embodiments, the protrusion 124 located in the first section 121 is disconnected from the protrusion 124 located in the second section 122, and the length of the protrusion 124 located in the first section 121 is greater than the length of the protrusion 124 located in the second section 122 along the length direction of the handle 10.

As such, the greater length of the protrusion 124 in the first section 121 than the protrusion 124 in the second section 122 may accommodate the usage habits of the user. Since the user is more labor-saving when using the electric toothbrush 100 to hold the first section 121, the length of the protrusion 124 in the first section 121 is greater than the length of the protrusion 124 in the second section 122, so that the user's hand can effectively hold the protrusion 124 in the first section 121.

In some embodiments, neither the length of the protrusion 124 located in the first segment 121 nor the length of the protrusion 124 located in the second segment 122 is greater than 10 cm. In this manner, the length of the handle 10 can be ensured while ensuring that the user's hand can effectively grip the protrusion 124, thereby increasing the frictional force between the hand and the handle 10 to prevent the electric toothbrush 100 from falling off.

Specifically, the length of the protrusion 124 located in the first section 121 may be the same as the length of the protrusion 124 located in the second section 122. The length of the protrusion 124 in the first section 121 may be different from the length of the protrusion 124 in the second section 122, and the length of the protrusion 124 in the first section 121 should be greater than the length of the protrusion 124 in the second section 122 to accommodate the usage habit of the user that generally holds the first section 121.

The length of the protrusion 124 located in the first section 121 and the length of the protrusion 124 located in the second section 122 may be 5cm, 5.5cm, 6cm, 6.5cm, 7cm, 7.5cm, 8cm, 8.5cm, 9cm, 9.5cm, 10cm, etc., without limitation.

It can be understood that, when the length of the protrusion 124 in the first section 121 and the length of the protrusion 124 in the second section 122 are both greater than 10cm, the range of the protrusion 124 that the user actually holds on the handle 10 is limited, the length of the protrusion 124 in the first section 121 and the second section 122 is too long, which may cause unnecessary waste, and meanwhile, the length of the protrusion 124 in the first section 121 and the second section 122 is too long, which may make the length of the first section 121 and the second section 122 longer, thereby increasing the volume of the electric toothbrush 100 and making it inconvenient to store.

Referring to fig. 5, in some embodiments, the length L1 of the first section 121 is greater than or equal to the length L2 of the second section 122, the ratio of the length L of the first section 121 to the overall handle 10 is 1/3-5/12, and/or the ratio of the length L of the second section 122 to the overall handle 10 is 1/6-1/3.

Thus, the length L1 of the first segment 121 is greater than or equal to the length L2 of the second segment 122, which guides the user to at least partially hold the first segment 121 during use, so that the user's hand can be partially held in the middle segment 123 and partially held in the first segment 121, which makes the user more labor-saving during brushing, thereby improving the user experience.

The ratio of the length L of the first section 121 to the handle 10 may be 0.34, 0.35, 0.36, 0.37, 0.4, or 0.1, which is not limited herein. The length L of the second section 122 integrated with the handle 10 may be 0.18, 0.2, 0.24, 0.26, 0.28, 0.3, 0.32, etc., and is not limited herein.

Referring to fig. 1 and 3, in some embodiments, the handle 10 has at least one button 13, and the protrusion 124 extends at least to the button 13. In this manner, the user can control the operation of the electric toothbrush 100 by controlling the button 13, while the protrusion 124 extending at least to the button 13 ensures that the user's hand remains in contact with the ridge 1241 when pressing the button 13.

In one embodiment, the handle 10 has a mounting hole, the button 13 is disposed in the mounting hole and connected to the circuit of the movement 20 inside the handle 10, the button 13 is connected to the general control circuit of the electric toothbrush 100, and the user can control the on/off of the electric toothbrush 100 or adjust the operation mode of the electric toothbrush 100 by operating the button 13.

Referring to fig. 1 and 7, in some embodiments, the button 13 protrudes from the outer peripheral surface of the handle 10 by a height greater than the height of the protrusion 124. In this manner, the user is facilitated to touch the button 13 to control the operation of the electric toothbrush 100 for blind operation.

Referring to fig. 1 and 3, in some embodiments, the two buttons 13 are spaced apart along the length of the handle 10, and the two buttons 13 have different shapes. Thus, the two buttons 13 can be distinguished by recognizing the shapes of the two buttons 13, facilitating blind operation.

Specifically, the power toothbrush 100 can be controlled to be turned on and off by one of the buttons 13, and the operation mode of the power toothbrush 100 can be controlled by the other button 13, for example, the vibration frequency of the bristles 31 of the toothbrush head 30 can be controlled. Further, the shape of the button 13 may be circular, elliptical, rectangular, or other irregular shapes, and the shape of the button 13 is not limited herein. It is understood that the control manner of the button 13 may include, but is not limited to, a pressing type, a knob type, a touch type, and the like, and is not limited thereto.

In one embodiment, the button 13 disposed adjacent the second section 122 is circular, the button 13 being used to turn the electric toothbrush 100 on and off; the button 13 disposed adjacent to the first section 121 has an oval shape, and the button 13 is used to control the vibration frequency of the bristles 31 of the toothbrush head 30.

Referring to fig. 1 and 8, in some embodiments, the handle 10 is used for the electric toothbrush 100, the handle 10 includes a holding portion 12 and a slow flow portion 11, the slow flow portion 11 is disposed at an end portion of the holding portion 12, the slow flow portion 11 includes a first end 111 and a second end 112 opposite to each other, the first end 111 is connected to the holding portion 12, the second end 112 is far away from the holding portion 12, an area of the first end 111 is larger than an area of the second end 112, and a ratio of the area of the second end 112 to the area of the first end 111 ranges from 1:10 to 1: 2.

Thus, when the electric toothbrush 100 is used, the slow flow portion 11 can block the water flow from the toothbrush head 30 to the holding portion 12, so as to prevent the water flow from dirtying the user's hand, and further effectively prevent the water flow from flowing to the holding portion 12 and deviating from the slow flow portion 11 at one end to breed bacteria.

Specifically, the area of the first end 111 is larger than the area of the second end 112, which can slow down the flow of water from the second end 112 to the first end 111, thereby further blocking the flow of waterImpeding the flow of water to the grip portion 12. The area ratio of the second end 112 to the first end 111 may be 0.1, 0.2, 0.3, 0.4, or 0.5, and the like, which is not limited herein. In one example, the first end 111 has an area of 195mm ² And the second end 112 has an area of 78mm ² The ratio of the area of the second end 112 to the first end 111 is 0.4.

In one embodiment, when a user holds the handle 10 of the electric toothbrush 100 to brush teeth, the electric toothbrush 100 is substantially in a horizontal state, water flow, foam and the like can flow to the second end 112 of the slow flow portion 11 along the brush handle 32 of the toothbrush head 30, and the area of the first end 111 is larger than that of the second end 112, so that the water flow can be blocked from further flowing to the first end 111, the water flow can drop into the hand washing sink from the slow flow portion 11 under the action of gravity, the water flow is prevented from flowing in the direction toward the holding portion 12 to pollute the hand of the user, and the water flow is prevented from only flowing away from the slow flow portion 11 on the holding portion 12 to breed bacteria.

It will be appreciated that the second end 112 of the relief portion 11 is connected to the head 30, the first end 111 of the relief portion 11 is connected to the grip portion 12, the first end 111 has a larger area than the second end 112 so that the first end 111 better supports the second end 112 and head 30, while the smaller area of the second end 112 allows the head 30 connected to the second end 112 to have a smaller area and the head 30 to have a smaller area so that the user can more carefully clean the teeth.

Referring to fig. 1, in some embodiments, a powered toothbrush 100 includes a handle 10 and a head 30, the head 30 being disposed on a slow flow portion 11 via a drive link 40.

Because the electric toothbrush 100 provided by the embodiment of the present application adopts the above-mentioned handle 10, the electric toothbrush 100 also has the advantages that when the electric toothbrush 100 is used, the slow flowing portion 11 can play a role of blocking the water flow from flowing from the toothbrush head 30 to the holding portion 12, so as to prevent the water flow from dirtying the hand of the user, and the water flow can be prevented from flowing to the end of the holding portion 12 departing from the slow flowing portion 11 to breed bacteria.

Wherein, one end of the transmission rod 40 is connected with the slow flow part 11, and the other end of the transmission rod 40 is connected with the toothbrush head 30. The handle 10 is provided with a control circuit inside, the control circuit is electrically connected with the transmission rod 40, and the control circuit can drive the transmission rod 40 to move, so as to drive the toothbrush head 30 to move to automatically clean the oral cavity of the user.

In one embodiment, the driving rod 40 is integrally formed with the handle 10, and the toothbrush head 30 may be formed with a mounting hole, and the driving rod 40 is inserted into the mounting hole of the toothbrush head 30 to complete the connection between the toothbrush head 30 and the handle 10.

Specifically, the toothbrush head 30 is mounted on the side of the slow flow portion 11 away from the holding portion 12, that is, the toothbrush head 30 is connected to the second end 112, and during the use of the electric toothbrush 100, a user can hold the holding portion 12 to clean the oral cavity by using the slow flow portion 11. It will be appreciated that the bristles 31 of the head 30 of the power toothbrush 100 are deformed to various degrees after a certain period of use, thereby reducing the efficiency of the power toothbrush 100 in cleaning the interior of the mouth and maintaining the sanitary environment of the mouth, and requiring regular replacement of the head 30.

It can be understood that the toothbrush head 30 is detachably connected with the slow flow portion 11, so that the electric toothbrush 100 only replaces the toothbrush head 30 when replacement is needed, and unnecessary waste is avoided.

Referring to fig. 1, 5 and 9, in some embodiments, in an axial projection of the handle 10, an outer contour of the second end 112 is covered by an outer contour of the second end 112 of the handle 10. Thus, when the handle 10 is horizontally placed on a table, the toothbrush head 30 connected to the second end 112 can be in a suspended state, that is, the toothbrush head 30 is spaced from the table, so that bacteria can be prevented from being bred due to the contact between the toothbrush head 30 and the table, and the cleanness of the electric toothbrush 100 can be ensured.

In some embodiments, the ratio of the spacing S1 from the first end 111 to the second end 112 to the diameter D1 of the circle circumscribing the first end 111 ranges from 1:5 to 3: 2. In this way, the flow moderating portion 11 can be made to be strongly inhibited from the flow of water by controlling the size of the flow moderating portion 11 to be small.

Specifically, the cross section of the first end 111 may be circular, triangular, rectangular, or other irregular shapes, which is not limited herein. It is understood that when the cross-section of the first end 111 is circular, the diameter D1 of the circumscribed circle of the first end 111 is the diameter of the cross-section of the first end 111 itself.

In one example, the diameter D1 of the circumscribed circle of the first end 111 is 50mm, the spacing S1 from the first end 111 to the second end 112 along the length of the handle 10 is 10mm, and the ratio of the spacing S1 from the first end 111 to the second end 112 to the diameter D1 of the circumscribed circle of the first end 111 is 1: 5.

In some embodiments, the junction between the flow reducing portion 11 and the grip portion 12 forms an annular edge, and the ridge 113 extends from the second end 112 to the first end 111. Thus, the annular edge can further prevent water from flowing from the slow flow portion 11 to the holding portion 12, and when the electric toothbrush 100 is horizontally placed on a table, the annular edge can contact with the table top, so that damage or pollution caused by rolling of the electric toothbrush 100 on the table top can be avoided.

In some embodiments, the ratio of the spacing S1 from the first end 111 to the second end 112 to the diameter D2 of the circle circumscribing the second end 112 ranges from 1:2 to 9.5: 1. In this way, the flow of water can be strongly hindered by the flow delaying portion 11 by controlling the size of the flow delaying portion 11 to be small.

Specifically, the cross-section of the second end 112 may be circular, triangular, rectangular, or other irregular shapes, which is not limited herein. It will be appreciated that when the cross-section of second end 112 is circular in shape, the diameter D2 of the circumscribed circle of second end 112 is the diameter of the cross-section of second end 112 itself.

In one example, the diameter D2 of the circumscribed circle of the second end 112 is 10mm, the spacing S1 from the first end 111 to the second end 112 along the length of the handle 10 is 5mm, and the ratio of the spacing S1 from the first end 111 to the second end 112 to the diameter D1 of the circumscribed circle of the first end 111 is 1: 2.

Referring to fig. 1, 5 and 9, in some embodiments, a plurality of ribs 113 are protruded from an outer circumferential surface of the slow flow portion 11, and the plurality of ribs 113 are arranged along a circumferential direction of the handle 10. In this way, the ridge 113 can further block the flow of water from the brush head 30 to the grip portion 12.

In some embodiments, the ridge 113 may be twisted around the circumference of the slow flow portion 11 in the longitudinal direction of the slow flow portion 11, so as to enhance the blocking effect of the slow flow portion 11 on the water flow to the holding portion 12.

The number of the ridge portions 113 may be 4, 5, 6, 7, 8, or the like, and the number of the ridge portions 113 is not limited herein. The plurality of edge parts 113 are uniformly arranged on the outer peripheral surface of the slow flow part 11 at intervals, so that water flow and foam and the like flowing from the toothbrush head 30 to the slow flow part 11 can be blocked by the edge parts 113 at all positions in the circumferential direction of the slow flow part 11, the water flow drops into the hand washing sink from the slow flow part 11, and the water flow is prevented from further flowing to the holding part 12 to pollute the hands of a user.

Referring to fig. 1, 5 and 10, in some embodiments, the ridge 113 extends from the first end 111 to the second end 112, and the protrusion degree of the ridge 113 gradually decreases in a direction from the first end 111 to the second end 112. Thus, when the water flows from the second end 112 to the first end 111, the blocking effect of the ridge 113 becomes stronger, and the blocking effect becomes stronger as the grip portion 12 is closer.

Specifically, when a user holds grip portion 12 and performs oral cleaning using head 30, water bubbles or the like flow from head 30 to second end 112, and ridge 113 at second end 112 obstructs the flow of water bubbles or the like. In the direction from the first end 111 to the second end 112, the protrusion degree of the ridge 113 gradually decreases to ensure that the area of the first end 111 is larger than that of the second end 112, and the flow of water from the second end 112 to the first end 111 is slowed down.

The closer the flow delaying portion 11 is to the grip portion 12, the stronger the water flow blocking ability is, and the water flow can be prevented from flowing to the grip portion 12. The degree of the protrusion 124 of the ridge 113 is gradually increased in the direction from the second end 112 to the first end 111, and the larger the degree of the protrusion 124 of the ridge 113 is, the stronger the water flow blocking effect is, so that the water flow can be blocked from flowing from the second end 112 to the first end 111, the flowing speed of the water flow at the holding part 12 is reduced, and the water flow is prevented from further flowing to the holding part 12 to pollute the hand of the user.

In some embodiments, the outer circumferential surface of the moderate flow portion 11 is configured in a concave shape in the direction from the first end 111 to the second end 112, and the ridge portion 113 is in a concave shape in the direction from the first end 111 to the second end 112.

In this way, the outer peripheral surface is configured to be concave in the direction from the first end 111 to the second end 112, so that a part of the water flow can be stored on the side of the slow flow portion 11 facing away from the wash basin, and the concave shape of the ridge portion 113 in the direction from the first end 111 to the second end 112 can slow down the flow of the water flow from the second end 112 to the first end 111, thereby further preventing the water flow from flowing to the holding portion 12 and dirtying the hands of the user.

Referring to fig. 1 and 10, in some embodiments, the curvature of the ridge 113 gradually increases from the first end 111 to the second end 112. Thus, the ridge 113 of the second end 112 has a larger curvature, so that when the user holds the grip portion 12 for oral cavity cleaning, the water flow passing through the second end 112 can drop from the second end 112 into the sink, thereby preventing the water flow from further flowing to the grip portion 12.

Referring to fig. 1 and 10, in some embodiments, the second end 112 is spaced apart from the ridge 113. In this manner, the accumulation of water at second end 112, which may result in the water entering between second end 112 and head 30, and thereby forming a soil formation, is avoided.

Specifically, toothbrush head 30 can be detachably connected to second end 112 through drive rod 40, a gap is formed at the connection position of toothbrush head 30 and second end 112, and second end 112 and edge 113 are arranged at intervals, so that water flow can be prevented from gathering at second end 112 and entering into the gap between toothbrush head 30 and second end 112, and dirt can be formed due to long-time accumulated water flow in the gap, bacteria can be bred, and even water flow can enter into movement 20 of handle 10 to cause damage.

Referring again to fig. 1 and 10, in some embodiments, the distance between adjacent ridges 113 decreases gradually from the first end 111 to the second end 112 along the circumference of the handle 10. Therefore, the water drop or the water flow can be guided, so that the surface area of the water drop or the water flow is increased, the thickness of the water drop or the water flow is thinned, and the flow of the water drop or the water flow is slowed down.

Specifically, since the distance between the adjacent ridge portions 113 increases gradually in the direction from the second end 112 to the first end 111 in the circumferential direction of the handle 10, the surface area of the water flow between the adjacent ridge portions 113 increases gradually in the process of the water flow flowing from the second end 112 to the first end 111, so that the thickness of the water flow decreases gradually, and the function of blocking the water flow is performed to prevent the water flow from flowing further to the grip portion 12.

In some embodiments, adjacent ridges 113 are planar between them in the circumferential direction of the handle 10. Thus, the planar arrangement can be used to guide the water flow so that the surface area of the water flow is increased, thereby reducing the thickness of the water flow and slowing down the flow velocity of the water flow.

Referring to fig. 1 and 8, in some embodiments, the height h of the protrusion of the ridge 113 is not greater than 2 mm. Thus, the ridge 113 can prevent the user from hurting the hand due to the height h of the ridge 113 being too high when the user touches the ridge 113 while the ridge 113 is prevented from blocking the flow of water.

Specifically, the height h of the protrusion of the ridge portion 113 refers to a distance between the highest point of the ridge portion 113 and the outer peripheral surface of the flow slowing portion 11 when the ridge portion 113 is arched away from the inner space of the handle 10. The height h of the protrusion of the rib 113 may be 0.05mm, 0.25mm, 0.5mm, 0.75mm, 1mm, 1.05mm, 1.35mm, 1.5mm, 1.75mm, 2mm, etc., without limitation.

It can be understood that when the height h of the protrusion of the edge portion 113 exceeds 2mm, the user easily hurts his hand when touching the edge portion 113, thereby affecting the hand feeling, and when the height h of the protrusion of the edge portion 113 exceeds 2mm, the edge portion 113 is easily damaged when the electric toothbrush 100 falls, thereby affecting the effect of the flow slowing portion 11 on blocking the flow of water from the toothbrush head 30 to the direction of the holding portion 12.

Referring to fig. 8, in some embodiments, the diameter D2 of the circle circumscribing the second end 112 is no greater than 10 mm. Thus, the small size of the second end 112 makes the flow delaying portion 11 more resistant to the flow of water.

The diameter D2 of the circumscribed circle of the second end 112 may be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc., without limitation.

It will be appreciated that when the diameter D2 of the circumscribed circle of the second end 112 is greater than 10mm, the larger size of the second end 112 impairs the ability of the flow moderating portion 11 to impede water flow. Meanwhile, second end 112 may be connected to head 30, and the diameter D2 of the circumscribed circle of second end 112 greater than 10mm may increase the cross-sectional area of handle 32 of head 30 connected to second end 112, thereby making it inconvenient for head 30 to clean the mouth of a user.

Referring to fig. 10, in some embodiments, the spacing S1 between the first end 111 and the second end 112 is not greater than 15 mm. As described above, the distance S1 between the first end 111 and the second end 112 is small, and the size of the slow flow portion 11 is small, so that the slow flow portion 11 has a strong resistance to the water flow.

Specifically, the distance S1 from the first end 111 to the second end 112 along the length direction of the handle 10 may be 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, or 15mm, etc., without limitation. When the distance S1 from the first end 111 to the second end 112 in the length direction of the handle 10 is larger than 15mm, the size of the slow flow portion 11 is increased, and the resistance of the slow flow portion 11 to water flow is reduced.

Referring to fig. 10, in some embodiments, the cross-sectional area of the slow flow portion 11 decreases gradually from the first end 111 to the second end 112. Thus, the cross-sectional area of the first end 111 is larger than the cross-sectional area of the second end 112, which can slow down the flow of water from the second end 112 to the first end 111, thereby further blocking the flow of water to the holding portion 12.

Referring to fig. 1, 5 and 9, in some embodiments, the cross-sectional area of the middle portion of the grip portion 12 is smaller than the cross-sectional area of the two end portions of the handle 10. Therefore, the function of slowing down the movement speed of the water flow can be achieved, and the water flow is prevented from flowing from one end, close to the slow flow part 11, of the handle 10 to one end, away from the slow flow part 11, of the holding part 12.

Referring to fig. 1 and 3, in some embodiments, the handle 10 is provided with a button 13, and the button 13 is disposed on the middle section 123 of the holding portion 12. In this way, the user can control the operation of the electric toothbrush 100 through the button 13, and the button 13 is disposed at the middle section 123 of the grip portion 12 for the user's operation.

In one embodiment, the middle portion 123 of the holding portion 12 has a mounting hole, the button 13 is disposed in the mounting hole and connected to the circuit of the movement 20 inside the handle 10, the button 13 is connected to the overall control circuit of the electric toothbrush 100, and the user can control the on/off of the electric toothbrush 100 or adjust the operation mode of the electric toothbrush 100 by operating the button 13.

In some embodiments, the grip portion 12 has a mounting hole, the button 13 is disposed in the mounting hole and connected to the circuit of the movement 20 inside the handle 10, and a space is formed between the button 13 and the grip portion 12. When the electric toothbrush 100 is used, the slow flow portion 11 may block water flow from the toothbrush head 30 to the holding portion 12, so that bacteria may be prevented from being grown in the gap between the button 13 and the holding portion 12.

Referring to fig. 1, in some embodiments, the number of the buttons 13 is multiple, the multiple buttons 13 are arranged at intervals along the length direction of the handle 10, and the multiple buttons 13 have different shapes. Thus, the plurality of buttons 13 can be distinguished by recognizing the shapes of the plurality of buttons 13, facilitating blind operation.

Referring to fig. 1, 8 and 9, in some embodiments, the handle 10 includes a first section 121, a second section 122 and an intermediate section 123, the intermediate section 123 connects the first section 121 and the second section 122, and the first section 121, the intermediate section 123 and the second section 122 are disposed along a length direction of the handle 10. The second section 122 has an increasing cross-sectional shape in a direction away from the intermediate section 123, and the first section 121 has an increasing cross-sectional shape in a direction away from the intermediate section 123. In the axial projection of the handle 10, the outer contour of the middle section 123 is covered by the second section 122 and the first section 121, the outer contour of at least one of the second section 122 and the first section 121 with the largest cross section has a plurality of positioning salient points 125 arranged at intervals, and the outer contour of the largest cross section is positioned at the inner side of the connecting line between the adjacent positioning salient points 125 or is overlapped with the connecting line between the adjacent positioning salient points 125.

Thus, when the electric toothbrush 100 is placed horizontally, the positioning protruding points 125 abut against the table top to block the electric toothbrush 100 from rolling, and the electric toothbrush 100 is prevented from falling to the ground to pollute the toothbrush or cause damage in the electric toothbrush 100, so that the electric toothbrush 100 is more stable when placed horizontally on the table top.

Specifically, the grip portion 12 of the electric toothbrush 100 is generally configured to have a cylindrical structure to conform to the usage habit of the user, but the grip portion 12 having the cylindrical structure is relatively easy to roll. The positioning protrusions 125 are protruded from the outer surface of the handle 10, and the positioning protrusions 125 are spaced apart from each other in the axial direction of the handle 10 at the maximum cross-sectional area of the first section 121 and/or the second section 122, so that when the electric toothbrush 100 is placed on a table, the positioning protrusions 125 contact the table, thereby preventing the electric toothbrush 100 from rolling on the table.

The number of the positioning protruding points 125 may be plural, and the plural positioning protruding points 125 are arranged at intervals around the circumference of the holding portion 12, so that the electric toothbrush 100 can be horizontally placed on a table top at any angle around the circumference of the holding portion 12, and the positioning protruding points 125 abut against the table top, thereby the electric toothbrush 100 rolls.

Furthermore, the outer contour of the largest cross section is located inside the connecting line between the adjacent positioning protruding points 125 or coincides with the connecting line between the adjacent positioning protruding points 125, that is, when the electric toothbrush 100 is horizontally placed on a table top, not only the positioning protruding points 125 are in contact with the table top, but also the plane between the largest cross sections of the handle 10 located between the adjacent positioning protruding points 125 is in contact with the table top, so that the stability of the electric toothbrush 100 horizontally placed on the table top can be further improved, and the electric toothbrush 100 is not easy to roll.

The second section 122 is in a shape with an increased section in the direction away from the middle section 123, the first section 121 is in a shape with an increased section in the direction away from the middle section 123, the middle section 123 is held by a hand of a user, the first section 121 and the second section 122 contact with the hand to form a barrier, and the hand is prevented from sliding towards the first section 121 and the second section 122 when the user holds the middle section 123.

Simultaneously first section 121 and second section 122 are by the section crescent at interlude 123 to both ends for the effect that can play the support in the both ends of first section 121 and second section 122, avoid toothbrush head 30 and desktop contact and cause the pollution. When a user holds the middle section 123 of the handle 10 to brush teeth, the sliding towards the two ends when the user holds the handle is avoided, and a certain buffering effect can be achieved.

Specifically, the first section 121 and the second section 122 gradually increase in cross section toward both sides, so that when the electric toothbrush 100 is placed horizontally, the end portions of both sides abut against the table top, and the cross sections of both ends are large, so that the toothbrush head 30 and the table top can keep a sufficient distance, and the toothbrush head 30 is prevented from contacting the table top. Meanwhile, the middle section 123 can be suspended relative to the desktop, and the button 13 mounted on the middle section 123 can be prevented from being touched by mistake.

When brushing teeth, a user generally holds the middle section 123 or partially holds the first section 121, the gradually-increased section of the second section 122 enables the hand to have a certain buffer effect on the hand when brushing teeth forcibly, the hand is prevented from sliding towards one end of the toothbrush head 30, the gradually-increased section of the first section 121 enables the electric toothbrush 100 to be prevented from slipping from one side of the first section 121 in the hand, and therefore the user has better use experience.

The outer contour of the middle section 123 is covered by the second section 122 and the first section 121, so that the first section 121 and the second section 112 can contact with the table top when the electric toothbrush 100 is placed on the table top in a horizontal manner, and the outer contour of the middle section 123 is small, so that the middle section 123 is in a suspended state, and a user can grasp the electric toothbrush 100 conveniently.

Referring to fig. 1 and 8, in some embodiments, the distance C2 between two adjacent positioning bumps 125 is greater than or equal to 3 mm. Thus, too small a distance C2 between two adjacent positioning bumps 125 can affect the stability of the powered toothbrush 100 when placed.

Specifically, the distance C2 between two adjacent positioning protrusions 125 may be 3mm, 4mm, 5mm, etc., and the larger the distance between two adjacent positioning protrusions 125 is, the larger the range of contact with the table top is, and the stronger the stability of the electric toothbrush 100 when placed on the table top is.

It should be noted that the distance C2 between two adjacent positioning protruding points 125 should not be too large, and the positioning protruding points 125 with too large distance cannot contact with the table top, and thus cannot play a role in limiting the positioning stability. The present application does not limit the distance C2 between two adjacent positioning bumps 125.

Referring to fig. 1 and 8, in some embodiments, the central angle θ of two adjacent positioning bumps 125 is 20 ° to 40 °. Thus, too small an angle of the central angle θ corresponding to two adjacent positioning protrusions 125 may affect the stability of the electric toothbrush 100 during placement.

Specifically, the angle of the central angle θ corresponding to two adjacent positioning protruding points 125 is the same as the influence of the distance C2 between two adjacent positioning protruding points 125 on the stability in the above description. The smaller the central angle θ corresponding to two adjacent positioning bumps 125 is, the smaller the distance between two adjacent positioning bumps 125 is, and the larger the central angle θ corresponding to two adjacent positioning bumps 125 is, the larger the distance between two adjacent positioning bumps 125 is.

The central angles θ corresponding to two adjacent positioning salient points 125 may be 20 °, 25 °, 33 °, 38 °, and the larger the central angle is, the larger the distance is, and the more stable the electric toothbrush 100 is placed on a table.

In some embodiments, the outer contour of the largest cross section is recessed inside the line connecting adjacent positioning protrusions 125. Therefore, the outer contour of the largest cross section of the handle 10 does not affect the contact between the positioning salient point 125 and the table top, that is, when the electric toothbrush 100 is horizontally arranged on the table top, a gap exists between the outer contour of the largest cross section of the handle 10 and the table top, so that the positioning salient point 125 is ensured to play a role in stabilizing the electric toothbrush 100, and the handle 10 of the electric toothbrush 100 can be conveniently grabbed.

In some embodiments, the second section 122 is provided with a positioning bump 125, and the maximum cross section of the first section 121 is smoothly curved. Thus, the positioning protruding point 125 on the second segment 122 can play a role in enhancing stability, and the outer contour of the first segment 121 is smooth and curved, so that the user can hold the outer contour more comfortably, and the hand hurting is avoided.

Specifically, the positioning protruding points 125 on the second section 122 may be formed at the maximum cross section of the second end 112, the plurality of positioning protruding points 125 may be provided, and the plurality of positioning protruding points 125 are arranged at intervals along the circumferential direction of the second end 112, so that when the electric toothbrush 100 is placed on a table horizontally, two adjacent positioning protruding points 125 on the second section 122 can contact with the table to prevent the electric toothbrush 100 from rolling on the table.

When the user is brushing teeth using the electric toothbrush 100, the thumb is put on the first section 121 while the four fingers are holding the position of the middle section 123, the outer peripheral surface of the first section 121 is set to be a smooth curved surface, so that the user is more comfortable to hold, and the use experience of the user is improved.

Referring to fig. 10, in some embodiments, at least one button 13 is disposed on the handle 10, the button 13 is disposed on the second section 122, the button 13 protrudes from the surface of the second section 122, any plane passing through the adjacent positioning protrusions 125 and tangent to the handle 10 is spaced apart from the button 13, and the button 13 is disposed on a side of the plane close to the handle 10.

In this manner, the button 13 can be used to control the opening and closing of the electric toothbrush 100, and the button 13 protrudes from the surface of the second section 122 so that the user can press the button 13. Specifically, the button 13 may also be disposed on the first segment 121 and protrude from a surface of the first segment 121, the button 13 may also be disposed on the middle segment 123 between the first segment 121 and the second segment 122, and the button 13 protrudes from a surface of the middle segment 123.

Referring to fig. 1 and 10, in certain embodiments, the second section 122 is adjacent the head 30 of the powered toothbrush 100, and the locating boss 125 is formed at the end of the second section 122 distal from the intermediate section 123. Thus, the user can avoid the hand from being pressed against the positioning protrusions 125 when holding the middle section 123 of the electric toothbrush 100, thereby affecting the hand feeling.

Specifically, when brushing teeth, the user generally holds the middle section 123 with his hand, and touches the second section 122 near the middle section 123, and the positioning protrusion 125 is disposed at the end of the second section 122 away from the middle section 123, so as to avoid the positioning protrusion 125 from touching his hand, thereby ensuring the hand feeling of the user when holding the handle 10.

It is understood that the positioning protrusions 125 can also be formed on the end of the first section 121 away from the middle section 123, since the user generally holds the middle section 123 with his hand during brushing teeth, and the fingers will also touch the portion of the first section 121 close to the middle section 123, and the positioning protrusions 125 are formed on the end of the first section 121 away from the middle section 123, so as to avoid the hand touching the positioning protrusions 125 and ensure the user's hand feeling when holding the handle 10. It is understood that the positioning bump 125 may be a portion of the ridge 1241.

In some embodiments, the tangent plane to the outer peripheral surface of handle 10 is spaced from head 30. Therefore, when the electric toothbrush 100 is transversely arranged on a table top, the toothbrush head 30 can be suspended, the toothbrush head 30 is prevented from being polluted by the contact between the toothbrush head 30 and the table top, and the cleanness of the toothbrush head 30 is ensured.

Referring to fig. 1 and 9, in some embodiments, handle 10 includes a grip portion 12, and head 30 is disposed at one end of grip portion 12, and the surface connecting the two ends of grip portion 12 is the outer peripheral surface of grip portion 12, any tangent plane to the outer peripheral surface being spaced from head 30 to allow head 30 to hang when powered toothbrush 100 is in a horizontal position.

In the electric toothbrush 100 of this application embodiment, handle 10 is including the portion 12 that grips, and the plane at arbitrary tangent plane place on the outer peripheral face of the portion 12 that grips all sets up with toothbrush head 30 interval, so, when electric toothbrush 100 transversely was on the desktop, the outer peripheral face of the portion 12 that grips supported with the desktop and held so that toothbrush head 30 and desktop have the interval, toothbrush head 30 any position can not contact with the desktop by all, avoid causing the pollution and influence the experience of brushing teeth to toothbrush head 30, guarantee toothbrush head 30's clean health.

When a user brushes teeth, the user can hold the handle 10 on the grip portion 12, and the toothbrush head 30 is provided on the end of the grip portion 12, thereby making the brushing easier. The outer peripheral surface of the grip portion 12 may be a wall surface that a hand can contact when gripping, and the tangent plane may be a plane tangent to any position of the outer peripheral surface. Wherein, when the plane of the tangent plane extends to one side of the toothbrush head 30, the plane is spaced from any position of the toothbrush head 30 by a certain distance.

It can be understood that when the electric toothbrush 100 is placed on a table surface after brushing teeth, the outer peripheral surface of the grip portion 12 is in contact with the table surface, and the plane of the table surface can be regarded as a tangential plane of the outer peripheral surface. Since the tangent plane is spaced apart from the brush head 30, the brush head 30 does not contact the table top, thereby preventing the brush head 30 from being contaminated.

Referring to fig. 1, 5 and 9, in some embodiments, in an axial projection of the electric toothbrush 100, an outer contour of the toothbrush head 30 is located within an outer contour of the grip portion 12. Alternatively, it can be understood that when the electric toothbrush 100 is viewed from the end opposite to the brush head 30 to the end of the brush head 30 in the axial direction, any portion of the brush head 30 cannot be seen in the visual field, and the brush head 30 is completely hidden by the grip portion 12.

Therefore, when the electric toothbrush 100 is horizontally placed on a table, the outer contour of the holding portion 12 contacts with the table, so that the toothbrush head 30 has a certain distance from the table, and the toothbrush head 30 is prevented from contacting with the table to cause pollution.

In some embodiments, the distance between the outer contour of head 30 and the outer contour of grip portion 12 is greater than 0.5 mm.

Thus, when head 30 is positioned across a relatively non-smooth table top, head 30 is still spaced from the table top, further ensuring that head 30 does not contact the table top.

Specifically, the toothbrush head 30 is installed at the center of the end of the handle 10, the bristles 31 of the toothbrush head 30 are arranged perpendicular to the axial direction of the toothbrush head 30, and the end of the bristles 31 may be at the outermost edge of the outer contour of the toothbrush head 30. Under the condition of guaranteeing that the brush hair 31 has good cleaning effect to the tooth, the distance between the tip of brush hair 31 and the outline of gripping portion 12 can be 0.6mm, 0.7mm or 1mm etc to avoid brush head 30 contact when horizontal with the desktop and pollute brush head 30, this application does not do the restriction to the specific distance between the outline of brush head 30 and the outline of gripping portion 12.

In some embodiments, the area of the end of grip portion 12 proximal to head 30 is greater than the area of the end of grip portion 12 distal to head 30.

So, when electric toothbrush 100 transversely put on the desktop, the both ends of portion 12 of gripping support with the desktop, because the terminal surface area that portion 12 of gripping is close to toothbrush head 30 is great, and then portion 12 of gripping wholly can be certain angle slope for the desktop for toothbrush head 30 upwards perks, further avoids toothbrush head 30 and desktop contact and causes the pollution.

It should be noted that the cross-sectional area of any position in the middle of the two ends of the grip portion 12 is smaller than the area of the end surface of the grip portion 12 near the head 30. Wherein, the middle area at both ends of the holding part 12 is along the end face direction close to the toothbrush head 30 to the end face far away from the toothbrush head 30, the sectional area of the holding part 12 can be gradually reduced, or the sectional area of the holding part 12 is firstly reduced and then increased, which is not limited in this application.

In some embodiments, the center of gravity of powered toothbrush 100 is located at the end of handle 12 remote from head 30.

Thus, the weight of the toothbrush head 30 does not affect the placement of the electric toothbrush 100, thereby facilitating the placement of the electric toothbrush 100.

Specifically, when the electric toothbrush 100 is placed on a table, the center of gravity of the electric toothbrush 100 is located at the end away from the toothbrush head 30, so that the toothbrush head 30 is prevented from tilting to the side of the table and contacting the table. When the electric toothbrush 100 is vertically placed on a table, one end of the electric toothbrush 100 far away from the toothbrush head 30 is at the bottom and contacts with the table, and the center of gravity of the electric toothbrush 100 is located at the end far away from the toothbrush head 30, so that the electric toothbrush 100 can be more stable when vertically placed.

Referring to fig. 2 and 11, in some embodiments, a movement 20 is disposed in the handle 10, the handle 10 includes a left housing and a right housing which are separately disposed, the left housing and the right housing are butted to form a mounting cavity for mounting the movement 20, and one of the left housing and the right housing is provided with a button mounting hole.

Thus, the handle 10 is separated to facilitate the assembly and disassembly of the movement 20, and the left shell and the right shell can protect the movement 20.

Specifically, left side casing and right casing can merge relatively or separate, and left side casing and right casing detachably connect, and both can connect through connection modes such as buckle, colloid, and this application does not do the restriction to the connection mode of left side casing and right casing.

Be formed with the matched with installation cavity in left side casing and the right casing, the shape of installation cavity can with the shape looks adaptation of core 20, and then core 20 can avoid core 20 to rock in the installation cavity when installing in the installation cavity.

The button mounting holes are arranged to penetrate through the housing, the shape of the button mounting holes can correspond to the shape and the number of the buttons 13, and the buttons 13 are electrically connected with the inner movement 20 and protrude out of the outer peripheral surface of the handle 10 through the button mounting holes. The button mounting hole can be formed on the left shell and also can be formed on the right shell, and the application does not limit the button mounting hole.

Referring to fig. 11, in some embodiments, the movement 20 includes a motor 22 and a battery 21, the battery 21 being mounted in the first section 121 and partially extending into the intermediate section 123; and/or

Motor 22 is mounted within second section 122 and extends partially into intermediate section 123.

In this manner, motor 22 and battery 21, which are the main functional components of electric toothbrush 100, can drive head 30 in different modes of vibration to clean the teeth.

Specifically, battery 21 can provide power support to motor 22, and motor 22 primarily drives brushhead 30. The battery 21 and the motor 22 may be installed inside the handle 10 in the axial direction of the handle 10, and since the brush head 30 is provided at the end of the second section 122, the motor 22 may be installed at one side of the second section 122 to facilitate the driving of the brush head 30 by the motor 22. The battery 21 may be installed at one side of the first segment 121. Meanwhile, the mass distribution of the handle 10 can be relatively uniform due to the arrangement of the motor 22 and the battery 21 according to the above positions, so that a user can hold the handle 10 more comfortably and more laborsavingly.

The powered toothbrush 100 further includes a drive link 40, the drive link 40 being connectable to the motor 22 and extending beyond the end of the second section 122 to facilitate a driving connection with the toothbrush head 30.

Referring to fig. 2 and 11, in some embodiments, the electric toothbrush 100 further includes a button 13, the button 13 is disposed on the handle 10 and protrudes from the outer peripheral surface, and in an axial projection of the electric toothbrush 100, the button 13 is located within an outer contour of the handle 10.

Thus, the button 13 can be used to control the on/off of the electric toothbrush 100, the button 13 protrudes from the outer peripheral surface so that the user can press the button 13, the button 13 is located in the outer contour of the handle 10 to avoid the button 13 from being touched by mistake, and meanwhile, the button 13 is prevented from protruding from the outer peripheral surface to cause the toothbrush head 30 to contact with the desktop.

Specifically, the buttons 13 may be provided in a circular shape, a square shape, etc., the number of the buttons 13 may be provided with one, two, three, etc., and a plurality of the buttons 13 may be used to control different modes of the electric toothbrush 100, respectively. The shape and number of the buttons 13 are not limited in the present application.

The user generally holds the electric toothbrush 100 in the middle region of the handle 10 when using the same, and the button 13 may be provided on the outer circumferential surface of the middle region of the handle 10. The top of the button 13 protrudes from the outer peripheral surface to facilitate the pressing operation of the button 13 by the user's finger.

The middle region of the handle 10 may have a concave structure with respect to both ends of the handle 10, and the button 13 may be located in the concave structure. Or it can be understood that the sectional area of the button 13 at the mounting position is smaller than the area of the end surfaces of both ends of the handle 10 in the direction perpendicular to the axis of the electric toothbrush 100. Furthermore, when the electric toothbrush 100 is placed on a table, the two ends of the handle 10 contact with the table to support the table, and the button 13 does not contact with the table, so as to prevent the handle 10 from mistakenly touching the button 13 when rolling on the table.

Referring to fig. 1, 5 and 9, in some embodiments, the grip portion 12 includes a first section 121, a second section 122 and a middle section 123, the first section 121, the middle section 123 and the second section 122 are sequentially disposed along the length direction of the grip portion 12, the toothbrush head 30 is mounted on the second section 122, and in an axial projection of the grip portion 12, the outer contours of the first section 121 and the second section 122 cover the outer contour of the middle section 123;

wherein, the outer contour of the maximum cross section of at least one of the first section 121 and the second section 122 has a plurality of positioning protrusions 125 arranged at intervals, and the positioning protrusions 125 are protruded on the outer surface of the grip part 12.

Therefore, the outer contours of the first section 121 and the second section 122 are large so as to avoid the electric toothbrush 100 from contacting with a table top when being horizontally placed, the outer contour of the middle section 123 is small so as to be convenient for a user to hold, the positioning salient point 125 is arranged at the position of the large section to play a role in blocking rolling, the electric toothbrush 100 is prevented from rolling down to the ground to pollute the toothbrush or cause damage to components such as the motor 22 in the electric toothbrush 100, and the electric toothbrush 100 is more stable when being horizontally placed on the table top.

Specifically, the first segment 121 and the second segment 122 are respectively connected to both ends of the middle segment 123, and the joints of the first segment 121, the middle segment 123 and the second segment 122 are smoothed, so that the user can more comfortably hold the hand. One end of the first section 121 opposite to the middle section 123 can be set to be a plane so that the electric toothbrush 100 can be vertically placed, the toothbrush head 30 can be detachably installed at the end of the first section 121 opposite to the middle section 123, and then the first section 121, the middle section 123, the second section 122 and the toothbrush head 30 can be sequentially connected and set along the length direction of the holding portion 12.

In the axial projection of the grip 12, the outer contour of the first segment 121 and the second segment 122 covering the outer contour of the middle segment 123 may be understood as that along the direction perpendicular to the axis of the grip 12, the maximum cross-sectional area of the first segment 121 and the second segment 122 is larger than the maximum cross-sectional area of the middle segment 123, and thus no matter along the direction from the second segment 122 to the first segment 121, or along the direction from the first segment 121 to the second segment 122, any part of the middle segment 123 cannot be seen in the field of view. The button 13 can be provided on the outer peripheral surface of the intermediate section 123, and thus, no erroneous touch is caused.

The positioning protrusions 125 may be disposed at the maximum cross section of the first segment 121, or at the maximum cross section of the second segment 122, or of course, the positioning protrusions 125 may be disposed at the maximum cross sections of both the first segment 121 and the second segment 122. The number of the positioning protrusions 125 may be plural, and the plural positioning protrusions 125 are provided at intervals around the circumference of the grip portion 12. The positioning protrusions 125 protrude from the outer peripheral surface of the grip portion 12.

When the positioning protruding points 125 are disposed on the outer contours of the maximum cross sections of the first section 121 and the second section 122, the positioning protruding points 125 on the first section 121 and the positioning protruding points 125 on the second section 122 may be aligned with each other along the axial direction of the handle 10, or may be non-aligned with each other, which is not limited in this application.

Referring to fig. 8, 9 and 12, in some embodiments, the outer contour of the maximum cross section of at least one of the first segment 121 and the second segment 122 is located inside the connecting line between the adjacent positioning protrusions 125 or coincides with the connecting line between the adjacent positioning protrusions 125.

Thus, the positioning protrusions 125 can contact with a table top to prevent the grip 12 from rolling on the table top, and further improve the stability of the electric toothbrush 100 when it is placed on the table.

Specifically, the plurality of positioning protruding points 125 are circumferentially arranged at intervals along the outer contour of the maximum cross section, and the contour line between two adjacent positioning protruding points 125 can coincide with the connecting line between two positioning protruding points 125, so that when the positioning protruding points are transversely arranged on a table top, the two positioning protruding points 125 and the contour line between the two positioning protruding points can be simultaneously contacted with the table top, and the electric toothbrush 100 is prevented from rolling on the table top.

The contour line between two adjacent positioning salient points 125 can also be the inboard of the line setting between two adjacent positioning salient points 125 of different shapes, for example, can be arc, angular form, and then when electric toothbrush 100 is transversely put on the desktop, two positioning salient points 125 contact with the desktop, the contour between stupefied positioning salient point 125 is unsettled for the desktop, can not exert an influence to electric toothbrush 100's stability, two positioning salient points 125 can make electric toothbrush 100 place on the desktop steadily.

Referring to fig. 1 and 10, in some embodiments, the second section 122 has a positioning protrusion 125 thereon, and the maximum cross-section of the middle section 123 has a smooth curve.

Thus, the positioning protruding point 125 on the second segment 122 can play a role of enhancing stability, and the outer contour of the middle segment 123 is smooth and curved, so that the user can hold the outer contour more comfortably, and the hand hurting is avoided.

Specifically, the positioning protruding points 125 on the second section 122 may be formed at the maximum cross section of the second section 122, the positioning protruding points 125 may be multiple, the multiple positioning protruding points 125 are arranged at intervals along the circumferential direction of the second section 122, and when the electric toothbrush 100 is placed on a table, two adjacent positioning protruding points 125 on the second section 122 may contact with the table to prevent the electric toothbrush 100 from rolling on the table. Of course, the positioning protrusions 125 may be separately disposed on the peripheral wall of the first segment 121, which is not limited in the present application.

When using electric toothbrush 100 to brush teeth, the user generally grips in the position department of interlude 123, and the outer peripheral face of interlude 123 can set up to glossy curved surface, and then more comfortable when making the user grip, avoids the outer peripheral face of interlude 123 to be formed with the rib and influence and feel, and the use of reinforcing user experiences and feels.

Referring to fig. 8, in some embodiments, any plane tangent to the outer peripheral surface through two adjacent locating projections 125 is spaced from head 30. Therefore, when the positioning bumps 125 contact and abut against a table, the toothbrush head 30 can be spaced from the table, so as to prevent the toothbrush head 30 from contacting the table to cause pollution.

Referring to fig. 1 and 5, in some embodiments, the grip portion 12 includes a first section 121, a second section 122 and an intermediate section 123, the first section 121 being connected to one end of the intermediate section 123, the second section 122 being connected to the other end of the intermediate section 123, the second section 122 being adapted to receive the toothbrush head 30.

Wherein the first segment 121 has a gradually increasing cross-section in a direction away from the intermediate segment 123, the second segment 122 has a gradually increasing cross-section in a direction away from the intermediate segment 123, and the length L2 of the second segment 122 is smaller than the length L1 of the first segment 121 to guide a user to at least partially grip the first segment 121 when in use.

In the electric toothbrush 100 according to the embodiment of the present application, the first section 121 and the second section 122 are respectively connected to both ends of the middle section 123, and the first section 121 and the second section 122 are gradually enlarged from the middle section 123 to the cross section away from both ends of the middle section 123, so that the handle 10 is in a form with a small middle and two large ends, and when the user brushes teeth, the user can hold the small part in the middle, so that the user can more comfortably grip the handle 10 when brushing teeth, and the grip can be more stable. In addition, the length of the second section 122 is smaller than that of the first section 121, so that the user can hold the second section to bring the hand closer to the first section 121, which makes the user more convenient to brush teeth and enhances the brushing experience of the user.

Along the axial direction of portion 12 that grips, first section 121 and second section 122 increase gradually to the cross-section of both sides along interlude 123 for when electric toothbrush 100 was horizontal, the tip of first section 121 and second section 122 both sides was held against with the desktop, and the cross-section at both ends is great makes toothbrush head 30 and desktop can keep sufficient distance, avoids toothbrush head 30 and desktop contact.

When brushing teeth, the user generally holds the position of the middle section 123 or partially holding the first section 121 by the hand, and the gradually-increased section of the second section 122 enables the hand to have a certain buffering effect on the hand when brushing teeth forcibly, so that the hand is prevented from sliding towards one end of the toothbrush head 30, the gradually-increased section of the first section 121 can also play a buffering effect, the electric toothbrush 100 is prevented from slipping from one side of the first section 121 in the hand, and the user has better use experience.

Meanwhile, the length L2 of the second section 122 is smaller than the length L1 of the first section 121, so that the user can be guided to partially hold the middle section 123 when holding the toothbrush, and partially hold the toothbrush at the first section 121, so that the user can more conveniently brush the teeth, the toothbrush head 30 has a larger activity space, and when the toothbrush head 30 rotates in the oral cavity and changes the position, the arm does not feel sour and painful due to long-time shaking.

In certain embodiments, the maximum cross-section of the intermediate section 123 is less than either of the cross-sections of the first section 121 and the second section 122, and the cross-section of the intermediate section 123 is of uniform size.

In this way, the cross-sectional size of the middle section 123 is uniform, and the cross-sections of the first section 121 and the second section 122 gradually increase from the middle section 123 to both sides, so that the user can hold the electric tool more comfortably.

Specifically, the cross-sectional size of the intermediate section 123 is uniform, which means that the shape of the intermediate section 123 may be provided in a cylindrical shape, a prismatic shape, or the like. When a user holds the handle 10 to brush teeth, the user generally mainly holds the middle section 123, and partially holds the middle section 123 at the first section 121 or the second section 122, and the middle section 123 is a columnar structure with a uniform cross section, so that the user can hold the middle section 123 more smoothly, and the hand hurting phenomenon caused by holding the middle section 123 hard is avoided.

Referring to fig. 1 and 5, in some embodiments, the cross section of the middle section 123 gradually increases from the middle of the middle section 123 to the two ends, and the trend of the change of the cross section size of the middle section 123 is smaller than the trend of the change of the cross section sizes of the first section 121 and the second section 122.

Thus, the middle section 123 can be connected with the first section 121 and the second section 122 more smoothly, and the connection between the middle section 123 and the first section 121 and the second section 122 does not have a sense of difference, which affects the holding hand feeling of the user.

Specifically, the overall structure of the grip 12 may be thicker from the middle of the middle segment 123 to the two ends, and there is no obvious sense of limitation among the first segment 121, the middle segment 123 and the second segment 122. Along the direction from the first segment 121 to the second segment 122, the cross section of the holding portion 12 gradually decreases and then gradually increases, and the cross section is the largest at the two ends of the holding portion 12.

Since the hand is generally held at the position of the middle section 123 when the handle 10 is held, the tendency of the cross-sectional size of the middle section 123 to change too much affects the user's hand feeling. The first section 121 and the second section 122 also have a certain supporting effect on the toothbrush head 30, so that the first section 121 and the second section 122 have a larger variation tendency, the tangent plane of the largest section at the two ends is spaced from the outer contour of the toothbrush head 30, and the toothbrush head 30 is prevented from contacting the table top to cause pollution.

Referring to fig. 1 and 5, in some embodiments, the length L3 of the intermediate section 123 is less than the length L2 of the first section 121 and the second section 122. Wherein the intermediate section 123 primarily connects the first section 121 and the second section 122. Furthermore, in the case that the length L of the handle 10 conforms to the holding habit of the user, the length L3 of the middle section 123 may be smaller than the length L2 of the first section 121 and the second section 122, and when the functional elements inside the handle 10 are installed, the mass can be distributed more uniformly, so as to avoid the influence on the holding comfort level due to the shift of the center of gravity caused by the overlong length L of the handle 10.

Referring to fig. 5, in some embodiments, the length L1 of the first segment 121 is greater than or equal to 50 mm. Thus, the length L1 of the first segment 121 is longer so that the user has more space to hold when holding, which makes it more convenient for the user to brush teeth. Meanwhile, the center of gravity of the handle 10 can be more biased to the side of the first section 121, so that the holding comfort of the user is enhanced.

Specifically, the length L1 of the first segment 121 may be 50mm, or may also be 55mm, 58mm, 60mm, etc., and the present application does not limit the specific length of the first segment 121, so that the mass distribution of the handle 10 is more uniform in a situation that conforms to the holding habit of the user. Meanwhile, the length L1 of the first segment 121 is long, which can provide enough installation space for the inner movement 20, and further, can provide more installation space for the battery 21, so that the battery 21 can have larger capacity to improve the endurance time of the electric toothbrush 100.

Referring to FIG. 5, in some embodiments, the sum of the length L3 of the intermediate section 123 and the length L2 of the second section 122 is greater than the length L1 of the first section 121 and the center of gravity of the handle 10 is located at the intermediate section 123.

So, can be according to the length scope of first section 121, interlude 123 and second section 122 and the inside core 20 mounted position of adjustment handle 10, and then adjustment handle 10's focus position, the focus of handle 10 is located interlude 123 position and can makes more comfortable laborsaving when the user grips, promotes user's the comfort level of gripping.

Specifically, motor 22 of deck 20 is generally disposed at the location of second segment 122 and intermediate segment 123, and battery 21 is generally disposed at the location of first end 111 and intermediate segment 123. When holding the handle 10, the user generally holds the handle at the positions of the first segment 121 and the middle segment 123, and then the center of the handle 10 is adjusted to the middle segment 123, so that the user can hold the handle more comfortably and more laborsavingly.

Referring to FIG. 5, in some embodiments, the length L2 of the second section 122 is less than or equal to 50mm, and the length L3 of the intermediate section 123 is greater than or equal to 20 mm. In this manner, the length settings of the second section 122 and the intermediate section 123 are more ergonomic, making the user more comfortable to hold.

Specifically, the length L2 of the second section 122 may be set to 28mm, 30mm, 35mm, 40mm, etc., and the length L3 of the intermediate section 123 may be set to 20mm, 25mm, 28mm, etc. When the user holds the handle 10 for brushing teeth, the user generally holds the handle at one side of the middle section 123 and the first section 121, and generally does not hold the second section 122, so that the length L2 of the second section 122 is not too long, the length L3 of the middle section 123 can be adjusted according to the use habits of the user, the center of gravity of the handle 10 is located at the position of the middle section 123, and the user can hold the handle more comfortably and more laborsavingly.

Referring to fig. 1, in some embodiments, the handle 10 further includes a button 13, the button 13 is disposed on a portion of the second section 122 near the middle section 123, or the button 13 is disposed on the middle section 123.

In this way, the button 13 can be used to control the on/off of the electric toothbrush 100, and the button 13 is disposed on the second section 122 near the middle section 123 or the button 13 is disposed on the middle section 123, so that the user can feel more convenient when pressing the button 13.

The button 13 may be disposed on the outer peripheral surface of the intermediate section 123, or may be disposed on the outer peripheral surface of the second section 122 near the intermediate section 123. When the electric toothbrush 100 is used, a user generally holds the middle section 123 or the first section 121 of the handle 10 and generally uses a thumb to press and touch, and then when the button 13 is arranged at the position, the thumb of the user can more conveniently press and touch the button 13, and meanwhile, the situation of mistaken touch cannot occur when the user holds the electric toothbrush.

Referring to fig. 1, 2 and 5, in some embodiments, the button 13 protrudes from the handle 10, and the button 13 has a cross-section smaller than a cross-section of either one of the end of the first section 121 and the end of the second section 122.

Therefore, the button 13 protrudes out of the outer peripheral surface of the handle 10, so that the button 13 can be pressed and touched more conveniently, and meanwhile, the smaller section of the button 13 can prevent the handle 10 from being pressed and touched by mistake when being placed on a table top.

Specifically, the upper surface of the button 13 may protrude from the outer peripheral surface of the handle 10, so that the user can more conveniently press the button, and meanwhile, the protruding setting enables the user to more accurately find the position of the button 13.

The button 13 is located at a position with a cross section smaller than the cross section of either one of the end of the first section 121 and the end of the second section 122. it can be understood that, in the axial projection of the electric toothbrush 100, the button 13 is located within the outer contour of the handle 10, that is, the button 13 may be installed at a position with a certain degree of concave structure relative to the two ends of the handle 10, and the button 13 is disposed in the concave structure. Furthermore, when the electric toothbrush 100 is placed on a table, the two ends of the handle 10 contact with the table to support the table, and the button 13 does not contact with the table, so as to prevent the handle 10 from mistakenly touching the button 13 when rolling on the table.

The button 13 mounting holes are arranged in a penetrating way, the shape of the button 13 mounting holes can correspond to the shape and the number of the buttons 13, and the buttons 13 are electrically connected with the inner movement 20 and protrude out of the outer peripheral surface of the handle 10 through the button 13 mounting holes. The button 13 mounting hole may be formed on the left housing or the right housing, which is not limited in this application.

Referring to fig. 1 and 5, in some embodiments, the end of the second section 122 distal to the intermediate section 123 is larger than the end of the first section 121 distal to the intermediate section 123.

So, the tip of second section 122 that toothbrush head 30 set up was located, the tip of second section 122 is great can make handle 10 horizontal when on the desktop be certain angle slope for the desktop is upwards perk to toothbrush head 30, further avoids toothbrush head 30 and desktop contact and causes the pollution.

Referring to fig. 1 and 5, in some embodiments, the ratio of the intermediate segment 123 to the second segment 122 ranges from 1:2 to 1:1, and the ratio of the intermediate segment 123 to the first segment 121 ranges from 1:3 to 2: 3.

Alternatively, in some embodiments, the ratio of the length of the first section 121 to the length of the handle 10 as a whole ranges from 1/3 to 5/12, and/or the ratio of the length of the second section 122 to the length of the handle 10 as a whole ranges from 1/6 to 1/3.

The ratio of the length of the first section 121 to the overall length of the handle 10 may be 0.34, 0.35, 0.36, 0.37, 0.4, or 0.1, which is not limited herein. The length of the second section 122 integrated with the handle 10 may be 0.18, 0.2, 0.24, 0.26, 0.28, 0.3, 0.32, etc., and is not limited herein.

In certain embodiments, the depth of depression of the intermediate section 123 relative to the first section 121 and the second section 122 is greater than 1.2 mm.

So, the user is more comfortable when holding handle 10, and interlude 123 is sunken for first section 121 and second section 122 and makes handle 10 transversely be in unsettledly when on the desktop interlude 123 to avoid button 13 of installation on interlude 123 to contradict with the desktop and cause the condition that the mistake is inconsistent.

The distance depth between the cross-sectional outer contour at the middle section 123 and the maximum cross-sectional outer contours at the two ends of the first section 121 and the second section 122 may be 1.3mm, 1.4mm, 1.5mm, and the like, which is not limited in the present application.

In certain embodiments, the cross-sections of the inner wall surfaces of the first section 121, the intermediate section 123, and the second section 122 are uniform in size. So, core 20 can be laminated with the inner wall when installing inside handle 10 for core 20 is more stable in the installation of installation intracavity.

Specifically, the inner wall surfaces of the first section 121, the middle section 123 and the second section 122 can be understood as the inner wall surface of the mounting cavity, the shape of the mounting cavity is matched with the outer contour shape of the movement 20, and the movement 20 can be more stably mounted in the handle 10.

In certain embodiments, the wall thickness of the second section 122 gradually increases in a direction from the intermediate section 123 to the second section 122, and the wall thickness of the first section 121 gradually increases in a direction from the intermediate section 123 to the first section 121.

Therefore, the wall thickness of the first section 121 and the second section 122 is gradually increased, so that the inner movement 20 can be better protected, and the damage of the inner movement 20 caused by the damage of the shell when the electric toothbrush 100 falls off is avoided.

Specifically, the wall thickness of the first section 121 and the second section 122 gradually increases, that is, the cross section of the first section 121 and the second section 122 gradually increases from the middle section 123 to both ends under the condition that the shape of the internal installation cavity is fixed. When the handle 10 falls, the end part of the handle generally falls to the ground first, and the wall thickness of the two ends is large, so that the handle can play a good role in protecting the handle and avoid damage.

Referring to fig. 1, in some embodiments, the positioning bump 125 is formed at an end of the second segment 122. Thus, the end of the second section 122 can be the largest cross section of the second section 122, so that the positioning protrusions 125 can contact and abut against the table top when the table is laid horizontally. Meanwhile, the positioning protruding points 125 are arranged at the end portions, so that the hand feeling of the user in holding is not influenced, the user is prevented from touching the positioning protruding points 125 and hurting the hand when holding on the second section 122, and the use experience of the user is enhanced.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides an electric toothbrush's host computer, its characterized in that, includes core and handle, the core is located in the handle, the handle includes first section and second section, first section with the second section is followed the length direction of handle sets up, the core includes the battery, first section with the second section forms respectively handle length direction's both ends, the second section is used for installing the toothbrush head, first section with the outer peripheral face of at least one in the second section has many archs, many archs are dorsad the inner space hunch-up and follow of handle the circumference interval of handle sets up, the arch is in extend on the length direction of handle.

2. The main body of the electric toothbrush according to claim 1, wherein the tip of the protrusion has a ridge extending in a length direction of the handle.

3. The main unit of the electric toothbrush according to claim 2, wherein the ridge extends to a lengthwise end of the handle; or the like, or, alternatively,

the length of the ridge is at least 3/5 the length of the first segment or the second segment.

4. The main body of the electric toothbrush according to claim 2, wherein the interval between two adjacent ridges along the circumference of the handle is in the range of 4mm to 10 mm.

5. The main body of the electric toothbrush according to claim 2, wherein a central angle formed between adjacent ridges along a circumferential direction of the handle is in a range of 20 degrees to 40 degrees.

6. The main body of the electric toothbrush according to claim 1, wherein the protrusions are twisted around a circumference of the handle in a length direction of the handle.

7. The main body of the electric toothbrush according to claim 1, wherein at least one of the first section and the second section has a gradually increasing cross-section in a direction away from each other.

8. The main body of the electric toothbrush according to claim 7, wherein the handle includes a middle section connecting the first section and the second section, and the plurality of protrusions extend in a direction away from the middle section of the handle along a length of the handle.

9. The host of electric toothbrushes of claim 7, wherein said handle includes an intermediate section connecting said first and second sections, said first and second sections each having progressively increasing cross-sections in a direction away from each other, said intermediate section being recessed to a depth greater than 1.5mm relative to a maximum cross-sectional dimension in said first and second sections.

10. The main body of the electric toothbrush according to claim 2, wherein a flat surface or a concave curved surface is formed between two adjacent ridges.

11. The main unit of the electric toothbrush according to claim 1, wherein the handle comprises a middle section connecting the first section and the second section, and an outer surface of the middle section is a smooth curved surface; and/or the presence of a gas in the atmosphere,

the projection height of the projection gradually decreases in a direction approaching the middle section; or the like, or, alternatively,

the height of the protrusion is gradually reduced from the middle of the protrusion to the two ends.

12. The main body of the electric toothbrush according to claim 1, wherein the height of the portion of the protrusion extending to both ends of the handle is gradually reduced in a direction near the end of the handle; or the like, or, alternatively,

13. The main body of the electric toothbrush according to claim 1, wherein both ends of the protrusion are spaced apart from both ends of the handle.

14. The main unit of an electric toothbrush according to claim 1, wherein the distance between two adjacent protrusions gradually increases in a direction from the middle section to both end sections of the handle in the circumferential direction of the handle.

15. The main body of the electric toothbrush according to claim 1, wherein the height of the protrusion is not more than 2 mm.

16. The electric toothbrush main body according to claim 1, wherein the protrusion in the first section is provided apart from the protrusion in the second section, and a length of the protrusion in the first section is longer than a length of the protrusion in the second section in a length direction of the handle.

17. The main body of the electric toothbrush according to claim 1, wherein a length of the protrusion in the first section and a length of the protrusion in the second section are not greater than 10 cm.

18. The electric toothbrush body as claimed in claim 1, wherein the length of the first section is greater than or equal to the length of the second section, the ratio of the length of the first section to the length of the handle as a whole ranges from 1/3 to 5/12, and/or the ratio of the length of the second section to the length of the handle as a whole ranges from 1/6 to 1/3.

19. The electric toothbrush main unit according to claim 1, wherein the handle is provided with at least one button, and the protrusion extends at least to the button.

20. The main body of the electric toothbrush according to claim 19, wherein the button protrudes from the outer peripheral surface of the handle by a height greater than a height of the protrusion.

21. The main body of the electric toothbrush according to claim 19, wherein the button comprises two buttons spaced apart along a length of the handle, the two buttons having different shapes.

22. An electric toothbrush, comprising:

a main body of the electric toothbrush of any one of claims 1 to 21; and

a toothbrush head disposed at the second section.